Public Workshop on DTSCs Proposal to List Treatments Containing - - PowerPoint PPT Presentation

Public Workshop

• n DTSC’s Proposal to List Treatments

Containing Perfluoroalkyl or Polyfluoroalkyl Substances (PFASs) for Use on Converted Textiles or Leathers

December 9, 2019 Facilitator: Asha Setty, Public Participation Specialist CalEPA Department of Toxic Substances Control

Webcast attendees, submit your comments to: SaferConsumerProducts@dtsc.ca.gov

CalEPA Department of Toxic Substances Control

2018-2020 Work Plan product categories

The Safer Consumer Products Framework

A Priority Product is a product-chemical combination that meets these criteria:

• There are potential exposures to a

Candidate Chemical in the product AND

• One or more exposures have

the potential to contribute to or cause significant or widespread adverse impacts

Summary of DTSC’s findings

Simona Bălan, Senior Environmental Scientist Simona.Balan@dtsc.ca.gov CalEPA Department of Toxic Substances Control

The technical basis for this proposal

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Scope of product: Treatments for use on converted textiles or leathers

Any product containing PFASs placed into commerce in California that may be marketed or sold for the purpose of:

• eliminating dirt or stains from converted

textiles or leathers such as carpets, rugs, clothing, shoes, upholstery; or

• repelling stains, dirt, oil, or water from

converted textiles or leathers such as carpets, rugs, clothing, shoes, upholstery.

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Scope of product: Treatments for use on converted textiles or leathers

Includes the following:

▪ cleaner: a product marketed or sold for the purpose of eliminating dirt or

stains;

▪ protectant: a product marketed or sold to protect the surface from soiling

when in contact with dirt or other impurities, or to reduce liquid absorption;

▪ spot remover: a product marketed or sold to clean localized areas, or to

remove localized spots or stains; and

▪ water proofer or water repellant: a product marketed or sold to repel water.

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Scope of product: Treatments for use on converted textiles or leathers Does not include products marketed or sold exclusively for use at industrial facilities during the process of carpet, rug, clothing, shoe, or furniture manufacturing.

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Scope of Candidate Chemical: Perfluoroalkyl and polyfluoroalkyl substances (PFASs)

▪ PFASs are a class of nearly 5,000 man-made chemicals with

at least one fully fluorinated carbon atom.

▪ All are Candidate Chemicals for our program, due to listing by

Biomonitoring California as Priority Chemicals in 2015.

▪ PFASs are used in treatments for converted textiles and leathers to

impart stain-, soil-, and water-resistance.

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Four main PFAS categories

Wang et al. (2017)

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Market presence of the product

▪ Steady decline in number of manufacturers and sales revenues from

2007 to 2017

• This does not account for foreign imports and substantial data gaps.

▪ Incomplete ingredient listing on product labels and Safety Data Sheets

• A 2008 Danish research report estimated 10% of treatment products

contain PFASs.

▪ Treatment products common in California homes and workplaces

• Potentially impacted occupations include shoe and leather workers and

repairers, vehicle cleaners, and building cleaning workers.

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Monitoring data

PFASs are ubiquitous in:

• the environment
• plants, animals, and humans
• human food and drinking water

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Conceptual exposure model

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

PFASs or their degradants display exposure potential hazard traits

▪ Environmental

persistence

▪ Mobility in the

environment

▪ Bioaccumulation

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

PFASs or their degradants display exposure potential hazard traits

▪ Environmental persistence ▪ Mobility in the environment ▪ Bioaccumulation ▪ Lactational and transplacental

transfer

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Known toxicological hazard traits of longer-chain PFAAs

▪ Carcinogenicity ▪ Cardiovascular toxicity ▪ Endocrine toxicity ▪ Immunotoxicity ▪ Reproductive toxicity

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Emerging toxicological hazard traits of shorter-chain PFAAs

▪ Developmental toxicity ▪ Endocrine toxicity ▪ Hematotoxicity ▪ Hepatotoxicity ▪ Neurodevelopmental toxicity ▪ Ocular toxicity ▪ Reproductive and

developmental toxicity

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

All PFASs are either of concern or have degradation, reaction, or metabolism products of concern

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Over 80 percent

• f PFASs may

degrade to PFAAs

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Potential adverse impacts to sensitive subpopulations, endangered species, and sensitive habitats

The most vulnerable human subpopulations include:

▪ Fetuses, infants, children, pregnant women ▪ Workers ▪ People with certain preexisting conditions

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Potential alternatives

▪ Siloxane and silicone polymers ▪ Hydrocarbons (i.e., paraffin waxes) ▪ Fatty acid derivatives (i.e., long-chain fatty acid esters) ▪ Polyurethanes ▪ Dendrimers (hydrocarbon- or polyurethane-based) ▪ ?

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Submit your comments on CalSAFER.dtsc.ca.gov by Dec. 31, 2019

Definitions and scope Potential for exposure Potential adverse impacts Potential alternatives

Webcast attendees, submit your comments to: SaferConsumerProducts@dtsc.ca.gov

CalEPA Department of Toxic Substances Control

Questions

• 1. Is the product definition clear and unambiguous?
• 2. Is the chemical definition clear and unambiguous?
• 3. Are there additional data on exposure or adverse impacts that

DTSC should be aware of?

• 4. Do you have any further information on alternatives to PFASs

for use in treatments for converted textiles or leathers?

Webcast attendees, submit your comments to: SaferConsumerProducts@dtsc.ca.gov

CalEPA Department of Toxic Substances Control

On Break

Public Workshop on DTSC’s Proposal to List Treatments Containing Perfluoroalkyl

• r Polyfluoroalkyl Substances (PFASs)

for Use on Converted Textiles or Leathers

December 9, 2019 Facilitator: Asha Setty, Public Participation Specialist CalEPA Department of Toxic Substances Control

Webcast attendees, submit your comments to: SaferConsumerProducts@dtsc.ca.gov

CalEPA Department of Toxic Substances Control

The path to adopting Priority Products

• Set Scope
• Research
• Engagement
• Revisions
• Writing
• Refinement

Rulemaking

Contact information

▪ Join our E-list to get updates: http://bit.ly/scpupdates ▪ General questions: SaferConsumerProducts@dtsc.ca.gov ▪ Media inquiries: Sanford.Nax@dtsc.ca.gov ▪ Technical questions: Andre.Algazi@dtsc.ca.gov

and Simona.Balan@dtsc.ca.gov

▪ Meeting requests: Heather.Kessler@dtsc.ca.gov